Type-casting machine



March 11, 1930 c. w. EDDY TYPE CASTING MACHINE Filed Oct. 13, 1928 3Sheets-Sheet l 4 INVEITlg -ATTORNE March 11, 1930. c, w, EDDY 1,750,166

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Patented Mar. 11, 1930 PATENT? OFFICE CHARLES W. EDDY, OF EASTPROVIDENCE, RHODE ISLAND TYPE-CASTING- MACHINE Application filed October13, 1928.

This invention relates to type casting machines, and the primary objectthereof is to provide an improved mold for regulating the length andthickness of slugs, types, orna- 5 ments, logotypes, printers furnitureand the like, and more particularly a mold which is automaticallyadjustable for regulating the length and thickness of slugs, etc. it

A further object of the invention is to provide a mold which can beeasily and quickly substituted for molds employed in casting machines ofa well known type now in general use, and which is also susceptible ofuse with other power or hand operated machines.

In the drawings Figure 1 is a perspective view of the invention appliedto a machine of common or well known type;

Figure 2 is a longitudinal sectional view taken through the mold andshowing the jaws in inoperative position;

Figure 3 is a view similar to Figure 2 showing the jaws in operativeposition and engaging the size regulating pieces, which latter areassembled in the stick;

Figure 4 is a View similar to Figure 1 show ing the parts in castingposition, the size regulating pieces bein cutaway to show their positionin the mold;

Figure 5 is a longitudinal sectional View of Figure t showing theposition of the parts after casting;

Figure 6 is a view similar to Figure 5, but showing the jaws open beforethe mold clescends from the matrices and also showing the fin attachedto the type;

Figure 7 is a sectional view showing the parts during the downwardposition of the mold and illustrating the type or slug firmly held inthe latter by the fin;

Figure 8 is a sectional view of the finished type or slug showing thefin removed therefrom;

Figure 9 is a detail View showing a large size of regulating pieceemployed to thicken the type or slug;

Figure 10 is a view similar to Figure 9 illustrating the invention inconnection with the type wherein the body thereof is smaller than thatof the face of the type;

Serial No. 312,230.

Figure 11 is a detail view showing the matrices assembled in the stickand a slug cast from the matrices;

Figure 12 is a view similar to Figure 11, but showing size regulatingpieces between some of the matrices and also the cast type, and

Figure 13 is a detail perspective view of one of the size regulatingpieces.

In proceeding in accordance with the present invention a mold 1 isemployed which is formed to seat on a top plate 2. The mold is providedwith slidable spring pressed jaws 3 and 4, and accordingly the jaw 3 isprovided with a pin 5 having a coil spring 6 thereon, the pin beingsecured to the jaw at one end and at its opposite end being headed andslidably received through the rear end 7 of the mold frame 1. A similarpin 8 is secured to the jaw 4|: and is surrounded by a coil spring 9,the pin being headed and extending through a slidable block 10 disposedwithin the mold frame. The block 10 has openings in its sides to looselyreceive the inner ends of dogs 11, the latter being pivoted at 12 andhaving their outer ends loosely received in openings in the sides of themold frame 1. A hollow slide 13 is connected to the mold frame 1 bymeans of a pin 14 headed into engagement with the latter, which pinpasses through the rear end of the slide and has a coil spring 15thereon, the latter pressing against the rear end of the slide.Auactuating pin or post 16 is carried by the usual cam device 17 commonto casting machines and engages within the adjacent end ofthe slide 13.

The plate 2 is formed with a slot 18 which latter registers with thespace between the jaws 3 and 4 and which is also adapted to registerwith the mouth piece 19 of the casting machine. The usual jets of themachine are illustrated at 20 in Figure 1.

In order to adapt the present invention to machines in common usage, theonly alteration of the machine required is that of removing the moldthereof and substituting the present invention, and the securement ofthe pin 16 to the cam device.

The size regulating pieces 20 are shown in Figure 13 and have dependingshanks 21.

In operation, and referring to Figure 11, the stick 22 is formed byfirst placing a size regulating piece 20 therein and then assembling thematrices 23 to form the desired work, following which a second sizeregulating piece of such length as to cover any exposed jets is placedin the stick and all of the parts are then firmly secured by means ofthe thumb screw 24. Figure 12 illustrates the formation of the stick forcasting single le ters or numerals by first placing a size regulatingpiece in the stick, then a matrice 23, then a size regulating piece,etc., or in other words, the size regulating pieces and matricesalternate, and finally a size regulating piece of the desired length isadded to the stick and the screw 24 tightened as above described.

After the stick has been formed as above described, it is locked in theopening of the usual cover of the machine and the latter is started. Atthis time the parts are in the position of Figure 2, and after the moldmoves upwardly the pin 16 moves outwardly from the mold as shown inFigure 3, causing the jaws 3 and l, by reason of the movement of theframe acting on the dogs 11-11, to grip the two sides of the shank 21 ofthe size regulating piece, so as to securely hold the latter. \Vhen themold reaches its extreme upward position, the melting pot is beneath theplate 2 and the ets 20 are in alignment with the slot 18 of the plate 2.The melted metal is then forced through the jets and slot 18 into themold and matrices as shown in Figure 5, resulting in casting of the type25. Completing the cycle, the pot moves to one side, the plate 2 movesdownwardly and the pin 16 moves into the position of igure 6, in whichsame is disengaged from the slide 13, releasing the pressure on the dogs1111, causing disengagement of the jaws 3 and 4 from the cast type,thereby releasing the latter. However, t 1e t pc is still held in themold by the fin 26 whic is integral therewith and which results from themolding as is obvious. The plate 2 and the mold then continue to movedownwardly until the fin 26 has been severed by a knife common tomachines of this type, at which time the cast type is lifted out of themold, conveyed from the machine by mechanism, also common to machines ofthis type.

In Figure 8 is shown the completed type 25 from which the fin 26 hasbeen removed.

Figure 9 shows larger size regulating pieces employed to thicken thebody of the type so as to make same larger than the size of the type,thus eliminating the necessity of spacing between the slugs duringprinting, While Figure 10 illustrates the body of the type of lessthickness or diameter than that of the face of the type.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent is:-

1. In a casting machine, a mold, slidable spring pressed jaws in themold, operating means for one of the jaws to move same toward the otherjaw, a spring pressed slide connected to said operating means, and a pinformed for connecting with the cam device of the machine to operate theslide.

2. In a casting machine, a mold, slidable spring pressed jaws in themold, operating means for one of the jaws to move same toward the otherjaw, means to actuate said operating means, and means operable by thecam device of the machine to operate said actuating means.

3. In a casting machine, a mold, a pair of opposed gripping jaws,independent spring means to tension each aw, and spring means to actuatethe jaws to cause same to move into and out of gripping position.

1. In a casting machine for use with type size regulating pieces, amold, means associated with the mold to releasably grip said pieces,means to actuate said gripping means, and spring means to tension saidgripping means operable independently of said actuating means thereof.

In testimony whereof I have hereunto signed my name.

CHAR-LES WV. EDDY.

